Tea bag



FIG. 1 is a top plan view of a tea bag embodying our new design; and

FIG. 2 is a front elevational view thereof.

The bottom plan view is not shown and is essentially identical to the top plan view of FIG. 1. The right side, left side and rear elevational views are not shown and are essentially identical to the front elevational view of FIG. 2. 

The ornamental design for a tea bag, as shown and described. 